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Qemu » Qemu » : Security Vulnerabilities

Cpe Name:cpe:/a:qemu:qemu:-
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# CVE ID CWE ID # of Exploits Vulnerability Type(s) Publish Date Update Date Score Gained Access Level Access Complexity Authentication Conf. Integ. Avail.
1 CVE-2018-20191 476 DoS 2018-12-20 2019-01-17
5.0
None Remote Low Not required None None Partial
hw/rdma/vmw/pvrdma_main.c in QEMU does not implement a read operation (such as uar_read by analogy to uar_write), which allows attackers to cause a denial of service (NULL pointer dereference).
2 CVE-2018-20126 399 2018-12-20 2019-01-09
2.1
None Local Low Not required None None Partial
hw/rdma/vmw/pvrdma_cmd.c in QEMU allows create_cq and create_qp memory leaks because errors are mishandled.
3 CVE-2018-20125 476 DoS 2018-12-20 2019-01-17
5.0
None Remote Low Not required None None Partial
hw/rdma/vmw/pvrdma_cmd.c in QEMU allows attackers to cause a denial of service (NULL pointer dereference or excessive memory allocation) in create_cq_ring or create_qp_rings.
4 CVE-2018-20124 125 2018-12-20 2019-01-09
2.1
None Local Low Not required None None Partial
hw/rdma/rdma_backend.c in QEMU allows guest OS users to trigger out-of-bounds access via a PvrdmaSqWqe ring element with a large num_sge value.
5 CVE-2018-20123 399 2018-12-17 2019-01-24
2.1
None Local Low Not required None None Partial
pvrdma_realize in hw/rdma/vmw/pvrdma_main.c in QEMU has a Memory leak after an initialisation error.
6 CVE-2018-19489 362 DoS 2018-12-13 2019-01-04
2.1
None Local Low Not required None None Partial
v9fs_wstat in hw/9pfs/9p.c in QEMU allows guest OS users to cause a denial of service (crash) because of a race condition during file renaming.
7 CVE-2018-19364 416 2018-12-13 2019-01-04
2.1
None Local Low Not required None None Partial
hw/9pfs/cofile.c and hw/9pfs/9p.c in QEMU can modify an fid path while it is being accessed by a second thread, leading to (for example) a use-after-free outcome.
8 CVE-2018-18954 125 2018-11-15 2018-12-18
2.1
None Local Low Not required None None Partial
The pnv_lpc_do_eccb function in hw/ppc/pnv_lpc.c in Qemu before 3.1 allows out-of-bounds write or read access to PowerNV memory.
9 CVE-2018-18438 190 Overflow 2018-10-19 2018-12-04
2.1
None Local Low Not required None None Partial
Qemu has integer overflows because IOReadHandler and its associated functions use a signed integer data type for a size value.
10 CVE-2018-17958 190 Overflow 2018-10-09 2018-11-28
5.0
None Remote Low Not required None None Partial
Qemu has a Buffer Overflow in rtl8139_do_receive in hw/net/rtl8139.c because an incorrect integer data type is used.
11 CVE-2018-16872 20 2018-12-13 2019-01-10
3.5
None Remote Medium Single system Partial None None
A flaw was found in qemu Media Transfer Protocol (MTP). The code opening files in usb_mtp_get_object and usb_mtp_get_partial_object and directories in usb_mtp_object_readdir doesn't consider that the underlying filesystem may have changed since the time lstat(2) was called in usb_mtp_object_alloc, a classical TOCTTOU problem. An attacker with write access to the host filesystem shared with a guest can use this property to navigate the host filesystem in the context of the QEMU process and read any file the QEMU process has access to. Access to the filesystem may be local or via a network share protocol such as CIFS.
12 CVE-2018-16867 22 Exec Code Dir. Trav. 2018-12-12 2019-01-08
4.6
None Local Low Not required Partial Partial Partial
A flaw was found in qemu Media Transfer Protocol (MTP) before version 3.1.0. A path traversal in the in usb_mtp_write_data function in hw/usb/dev-mtp.c due to an improper filename sanitization. When the guest device is mounted in read-write mode, this allows to read/write arbitrary files which may lead do DoS scenario OR possibly lead to code execution on the host.
13 CVE-2018-15746 358 DoS 2018-08-29 2018-11-02
2.1
None Local Low Not required None None Partial
qemu-seccomp.c in QEMU might allow local OS guest users to cause a denial of service (guest crash) by leveraging mishandling of the seccomp policy for threads other than the main thread.
14 CVE-2018-11806 119 Overflow 2018-06-13 2018-11-27
7.2
None Local Low Not required Complete Complete Complete
m_cat in slirp/mbuf.c in Qemu has a heap-based buffer overflow via incoming fragmented datagrams.
15 CVE-2018-7550 125 Exec Code 2018-03-01 2018-09-07
4.6
None Local Low Not required Partial Partial Partial
The load_multiboot function in hw/i386/multiboot.c in Quick Emulator (aka QEMU) allows local guest OS users to execute arbitrary code on the QEMU host via a mh_load_end_addr value greater than mh_bss_end_addr, which triggers an out-of-bounds read or write memory access.
16 CVE-2017-18030 125 DoS 2018-01-23 2018-09-07
2.1
None Local Low Not required None None Partial
The cirrus_invalidate_region function in hw/display/cirrus_vga.c in Qemu allows local OS guest privileged users to cause a denial of service (out-of-bounds array access and QEMU process crash) via vectors related to negative pitch.
17 CVE-2017-16845 125 2017-11-17 2018-09-07
7.5
None Remote Low Not required Partial Partial Partial
hw/input/ps2.c in Qemu does not validate 'rptr' and 'count' values during guest migration, leading to out-of-bounds access.
18 CVE-2017-15119 400 DoS 2018-07-27 2018-09-24
5.0
None Remote Low Not required None None Partial
The Network Block Device (NBD) server in Quick Emulator (QEMU) before 2.11 is vulnerable to a denial of service issue. It could occur if a client sent large option requests, making the server waste CPU time on reading up to 4GB per request. A client could use this flaw to keep the NBD server from serving other requests, resulting in DoS.
19 CVE-2017-15118 787 Overflow 2018-07-27 2018-09-24
7.5
None Remote Low Not required Partial Partial Partial
A stack-based buffer overflow vulnerability was found in NBD server implementation in qemu before 2.11 allowing a client to request an export name of size up to 4096 bytes, which in fact should be limited to 256 bytes, causing an out-of-bounds stack write in the qemu process. If NBD server requires TLS, the attacker cannot trigger the buffer overflow without first successfully negotiating TLS.
20 CVE-2017-8379 399 DoS 2017-05-23 2018-09-07
4.9
None Local Low Not required None None Complete
Memory leak in the keyboard input event handlers support in QEMU (aka Quick Emulator) allows local guest OS privileged users to cause a denial of service (host memory consumption) by rapidly generating large keyboard events.
21 CVE-2017-8309 399 DoS 2017-05-23 2018-09-07
7.8
None Remote Low Not required None None Complete
Memory leak in the audio/audio.c in QEMU (aka Quick Emulator) allows remote attackers to cause a denial of service (memory consumption) by repeatedly starting and stopping audio capture.
22 CVE-2017-8112 400 DoS 2017-05-02 2018-09-07
4.9
None Local Low Not required None None Complete
hw/scsi/vmw_pvscsi.c in QEMU (aka Quick Emulator) allows local guest OS privileged users to cause a denial of service (infinite loop and CPU consumption) via the message ring page count.
23 CVE-2017-8086 399 DoS 2017-05-02 2018-09-07
4.9
None Local Low Not required None None Complete
Memory leak in the v9fs_list_xattr function in hw/9pfs/9p-xattr.c in QEMU (aka Quick Emulator) allows local guest OS privileged users to cause a denial of service (memory consumption) via vectors involving the orig_value variable.
24 CVE-2017-7539 20 DoS 2018-07-26 2018-10-01
5.0
None Remote Low Not required None None Partial
An assertion-failure flaw was found in Qemu before 2.10.1, in the Network Block Device (NBD) server's initial connection negotiation, where the I/O coroutine was undefined. This could crash the qemu-nbd server if a client sent unexpected data during connection negotiation. A remote user or process could use this flaw to crash the qemu-nbd server resulting in denial of service.
25 CVE-2017-7471 284 2018-07-09 2018-09-06
7.7
None Local Network Low Single system Complete Complete Complete
Quick Emulator (Qemu) built with the VirtFS, host directory sharing via Plan 9 File System (9pfs) support, is vulnerable to an improper access control issue. It could occur while accessing files on a shared host directory. A privileged user inside guest could use this flaw to access host file system beyond the shared folder and potentially escalating their privileges on a host.
26 CVE-2017-7377 399 DoS 2017-04-10 2018-09-07
2.1
None Local Low Not required None None Partial
The (1) v9fs_create and (2) v9fs_lcreate functions in hw/9pfs/9p.c in QEMU (aka Quick Emulator) allow local guest OS privileged users to cause a denial of service (file descriptor or memory consumption) via vectors related to an already in-use fid.
27 CVE-2017-5957 119 DoS Overflow 2017-03-14 2017-07-10
2.1
None Local Low Not required None None Partial
Stack-based buffer overflow in the vrend_decode_set_framebuffer_state function in vrend_decode.c in virglrenderer before 926b9b3460a48f6454d8bbe9e44313d86a65447f, as used in Quick Emulator (QEMU), allows a local guest users to cause a denial of service (application crash) via the "nr_cbufs" argument.
28 CVE-2017-2633 125 2018-07-27 2018-09-24
4.0
None Remote Low Single system None None Partial
An out-of-bounds memory access issue was found in Quick Emulator (QEMU) before 1.7.2 in the VNC display driver. This flaw could occur while refreshing the VNC display surface area in the 'vnc_refresh_server_surface'. A user inside a guest could use this flaw to crash the QEMU process.
29 CVE-2017-2630 119 Exec Code Overflow 2018-07-27 2018-09-27
6.5
None Remote Low Single system Partial Partial Partial
A stack buffer overflow flaw was found in the Quick Emulator (QEMU) before 2.9 built with the Network Block Device (NBD) client support. The flaw could occur while processing server's response to a 'NBD_OPT_LIST' request. A malicious NBD server could use this issue to crash a remote NBD client resulting in DoS or potentially execute arbitrary code on client host with privileges of the QEMU process.
30 CVE-2017-2620 125 Exec Code 2018-07-27 2018-09-07
9.0
None Remote Low Single system Complete Complete Complete
Quick emulator (QEMU) before 2.8 built with the Cirrus CLGD 54xx VGA Emulator support is vulnerable to an out-of-bounds access issue. The issue could occur while copying VGA data in cirrus_bitblt_cputovideo. A privileged user inside guest could use this flaw to crash the QEMU process OR potentially execute arbitrary code on host with privileges of the QEMU process.
31 CVE-2016-9923 416 2016-12-23 2017-06-30
2.1
None Local Low Not required None None Partial
Quick Emulator (Qemu) built with the 'chardev' backend support is vulnerable to a use after free issue. It could occur while hotplug and unplugging the device in the guest. A guest user/process could use this flaw to crash a Qemu process on the host resulting in DoS.
32 CVE-2016-9921 369 2016-12-23 2018-09-07
2.1
None Local Low Not required None None Partial
Quick emulator (Qemu) built with the Cirrus CLGD 54xx VGA Emulator support is vulnerable to a divide by zero issue. It could occur while copying VGA data when cirrus graphics mode was set to be VGA. A privileged user inside guest could use this flaw to crash the Qemu process instance on the host, resulting in DoS.
33 CVE-2016-9912 400 2016-12-23 2017-06-30
2.1
None Local Low Not required None None Partial
Quick Emulator (Qemu) built with the Virtio GPU Device emulator support is vulnerable to a memory leakage issue. It could occur while destroying gpu resource object in 'virtio_gpu_resource_destroy'. A guest user/process could use this flaw to leak host memory bytes, resulting in DoS for a host.
34 CVE-2016-9911 400 2016-12-23 2018-09-07
2.1
None Local Low Not required None None Partial
Quick Emulator (Qemu) built with the USB EHCI Emulation support is vulnerable to a memory leakage issue. It could occur while processing packet data in 'ehci_init_transfer'. A guest user/process could use this issue to leak host memory, resulting in DoS for a host.
35 CVE-2016-9908 200 +Info 2016-12-23 2017-06-30
2.1
None Local Low Not required Partial None None
Quick Emulator (Qemu) built with the Virtio GPU Device emulator support is vulnerable to an information leakage issue. It could occur while processing 'VIRTIO_GPU_CMD_GET_CAPSET' command. A guest user/process could use this flaw to leak contents of the host memory bytes.
36 CVE-2016-9907 400 2016-12-23 2018-09-07
2.1
None Local Low Not required None None Partial
Quick Emulator (Qemu) built with the USB redirector usb-guest support is vulnerable to a memory leakage flaw. It could occur while destroying the USB redirector in 'usbredir_handle_destroy'. A guest user/process could use this issue to leak host memory, resulting in DoS for a host.
37 CVE-2016-9603 119 Exec Code Overflow 2018-07-27 2018-09-07
9.0
None Remote Low Single system Complete Complete Complete
A heap buffer overflow flaw was found in QEMU's Cirrus CLGD 54xx VGA emulator's VNC display driver support before 2.9; the issue could occur when a VNC client attempted to update its display after a VGA operation is performed by a guest. A privileged user/process inside a guest could use this flaw to crash the QEMU process or, potentially, execute arbitrary code on the host with privileges of the QEMU process.
38 CVE-2016-9602 59 2018-04-26 2018-09-07
9.0
None Remote Low Single system Complete Complete Complete
Qemu before version 2.9 is vulnerable to an improper link following when built with the VirtFS. A privileged user inside guest could use this flaw to access host file system beyond the shared folder and potentially escalating their privileges on a host.
39 CVE-2016-9106 399 DoS 2016-12-09 2018-12-01
2.1
None Local Low Not required None None Partial
Memory leak in the v9fs_write function in hw/9pfs/9p.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (memory consumption) by leveraging failure to free an IO vector.
40 CVE-2016-9105 399 DoS 2016-12-09 2018-12-01
2.1
None Local Low Not required None None Partial
Memory leak in the v9fs_link function in hw/9pfs/9p.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (memory consumption) via vectors involving a reference to the source fid object.
41 CVE-2016-9104 125 DoS Overflow 2016-12-09 2018-12-01
2.1
None Local Low Not required None None Partial
Multiple integer overflows in the (1) v9fs_xattr_read and (2) v9fs_xattr_write functions in hw/9pfs/9p.c in QEMU (aka Quick Emulator) allow local guest OS administrators to cause a denial of service (QEMU process crash) via a crafted offset, which triggers an out-of-bounds access.
42 CVE-2016-9103 119 Overflow +Info 2016-12-09 2018-12-01
2.1
None Local Low Not required Partial None None
The v9fs_xattrcreate function in hw/9pfs/9p.c in QEMU (aka Quick Emulator) allows local guest OS administrators to obtain sensitive host heap memory information by reading xattribute values before writing to them.
43 CVE-2016-9102 399 DoS 2016-12-09 2018-12-01
2.1
None Local Low Not required None None Partial
Memory leak in the v9fs_xattrcreate function in hw/9pfs/9p.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (memory consumption and QEMU process crash) via a large number of Txattrcreate messages with the same fid number.
44 CVE-2016-9101 399 DoS 2016-12-09 2018-12-01
2.1
None Local Low Not required None None Partial
Memory leak in hw/net/eepro100.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (memory consumption and QEMU process crash) by repeatedly unplugging an i8255x (PRO100) NIC device.
45 CVE-2016-8910 399 DoS 2016-11-04 2018-12-01
1.9
None Local Medium Not required None None Partial
The rtl8139_cplus_transmit function in hw/net/rtl8139.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (infinite loop and CPU consumption) by leveraging failure to limit the ring descriptor count.
46 CVE-2016-8909 399 DoS 2016-11-04 2018-12-01
1.9
None Local Medium Not required None None Partial
The intel_hda_xfer function in hw/audio/intel-hda.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (infinite loop and CPU consumption) via an entry with the same value for buffer length and pointer position.
47 CVE-2016-8669 369 DoS 2016-11-04 2018-09-07
1.9
None Local Medium Not required None None Partial
The serial_update_parameters function in hw/char/serial.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (divide-by-zero error and QEMU process crash) via vectors involving a value of divider greater than baud base.
48 CVE-2016-8668 125 DoS 2016-11-04 2017-06-30
1.9
None Local Medium Not required None None Partial
The rocker_io_writel function in hw/net/rocker/rocker.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (out-of-bounds read and QEMU process crash) by leveraging failure to limit DMA buffer size.
49 CVE-2016-8667 369 DoS 2016-11-04 2018-09-07
1.9
None Local Medium Not required None None Partial
The rc4030_write function in hw/dma/rc4030.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (divide-by-zero error and QEMU process crash) via a large interval timer reload value.
50 CVE-2016-8578 476 DoS 2016-11-04 2018-12-01
1.9
None Local Medium Not required None None Partial
The v9fs_iov_vunmarshal function in fsdev/9p-iov-marshal.c in QEMU (aka Quick Emulator) allows local guest OS administrators to cause a denial of service (NULL pointer dereference and QEMU process crash) by sending an empty string parameter to a 9P operation.
Total number of vulnerabilities : 117   Page : 1 (This Page)2 3
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